38988243 has 32 divisors (see below), whose sum is σ = 68889600. Its totient is φ = 21307968.

The previous prime is 38988241. The next prime is 38988307. The reversal of 38988243 is 34288983.

It is not a de Polignac number, because 38988243 - 2¹ = 38988241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38988241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138 + ... + 8831.

It is an arithmetic number, because the mean of its divisors is an integer number (2152800).

Almost surely, 2^38988243 is an apocalyptic number.

38988243 is a deficient number, since it is larger than the sum of its proper divisors (29901357).

38988243 is a wasteful number, since it uses less digits than its factorization.

38988243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9008 (or 9002 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 38988243 is about 6244.0566140931. The cubic root of 38988243 is about 339.0870635492.

It can be divided in two parts, 38988 and 243, that multiplied together give a square (9474084 = 3078²).

The spelling of 38988243 in words is "thirty-eight million, nine hundred eighty-eight thousand, two hundred forty-three".